A logical channel data packet transmission method for a user equipment (UE) is provided. The UE includes a processor configured to perform the following instructions. A packet data control protocol (PDCP) packet data unit (PDU) is duplicated to generate a first PDCP PDU and a second PDCP PDU in a PDCP entity. The first PDCP PDU is transmitted to a first radio link control (RLC) bearer. The second PDCP PDU is transmitted to a second RLC bearer. A first RLC PDU is generated in response to the first PDCP PDU in the first RLC bearer. A second RLC PDU is generated in response to the PDCP PDU in the second RLC bearer. The first RLC PDU and the second RLC PDU are received in a medium access control (MAC) entity associated to the first and second RLC bearers.
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2. The method of claim 1, wherein the LCP parameters are received from a first base station for duplication in dual-connectivity operations between the first base station and a second base station.
8. The UE of claim 7, wherein the processor is configured to execute the instructions to cause the UE to receive the LCP parameters from a first base station for duplication in dual-connectivity operations between the first base station and a second base station.
11. The UE of claim 7, wherein the processor is configured to execute the instructions to cause the UE to determine, by the MAC entity, whether the first and second RLC data packets are duplicated RLC data packets based on first and second logical channel identities corresponding to the first and second logical channels.
12. The UE of claim 7, wherein the processor is configured to execute the instructions to cause the UE to determine, by the MAC entity, whether the first and second RLC data packets are duplicated RLC data packets based on first and second logical channel identities and a duplication indicator, the duplication indicator including a flag bit in a MAC header.
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April 1, 2018
May 30, 2023
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